When a girls vagina is so big it looks like a goonch catfish's mouth laying on it's side.
Will: Hey, check out this picture of my girls vagina, does it look big to you?
Mike: Wow, dude, your girl has a huge gooncher, be careful when eating that, it might eat back.
An alpha male often described as a gigachad that everybody wants to be. A Goonak makes instant decisions that everybody wishes they had but couldn’t due to the lack of Goonakness. Also perceived as a god Goonak doesn’t care what other people think of him as he know he’s above everyone.